lib min_heap: improve type safety in min_heap macros by using container_of

Patch series "lib min_heap: Improve min_heap safety, testing, and
documentation".

Improve the min heap implementation by enhancing type safety with
container_of, reducing the attack vector by replacing test function calls
with inline variants, and adding a brief API introduction in min_heap.h. 
It also includes author information in
Documentation/core-api/min_heap.rst.


This patch (of 4):

The current implementation of min_heap macros uses explicit casting to
min_heap_char *, which prevents the compiler from detecting incorrect
pointer types.  This can lead to errors if non-min_heap pointers are
passed inadvertently.

To enhance safety, replace all explicit casts to min_heap_char * with the
use of container_of(&(_heap)->nr, min_heap_char, nr).  This approach
ensures that the _heap parameter is indeed a min_heap_char-compatible
structure, allowing the compiler to catch improper usages.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lore.kernel.org/lkml/CAMuHMdVO5DPuD9HYWBFqKDHphx7+0BEhreUxtVC40A=8p6VAhQ@mail.gmail.com
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kuan-Wei Chiu <[email protected]>
Suggested-by: Geert Uytterhoeven <[email protected]>
Cc: Ching-Chun (Jim) Huang <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions